#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <errno.h>
#include <sys/socket.h>
#include <sys/types.h>
#include <arpa/inet.h>
#include <ctype.h>
#include <stdio.h>
#include <sqlite3.h>



int main(int argc, char *argv[])
{
    int sfd,cfd;
    int ret,i;
    char name[200]="xiaoming";
    char passwd[200]="123";

        struct sockaddr_in srv_addr;		// 创建服务器地址结构,初始化

        srv_addr.sin_family = AF_INET;
        srv_addr.sin_port = htons(8888);
        srv_addr.sin_addr.s_addr = inet_addr("127.0.0.1");


    //1.创建套接字
    sfd = socket(AF_INET , SOCK_STREAM,0);
    if(sfd == -1)
    {
        perror("socket");
        return -1;
    }
    //2.绑定服务器IP和端口号
    if(bind(sfd,(struct sockaddr*)&srv_addr, sizeof(srv_addr))==-1)
    {
        perror("bind");
        return -1;
    }
    //3.设置监听上限
    if(listen(sfd,5)==-1)
    {
        perror("listen");
        return -1;
    }
    printf("服务器等待客户端链接...\n");

    //4.阻塞等待客户端连接请求
        cfd = accept(sfd,NULL, NULL);
                 if(cfd == -1)
    {
        perror("accept");
        return -1;
    }
        printf("链接成功\n");
        while (1)
        {
        // 5.read() 读取客户端发送数据
        char buf[20];
        char recv_name[20];
        char recv_passwd[20];

        read(cfd, buf, sizeof(buf));
        printf("现在的状态是：%s\n", buf);
        if(strcmp(buf,"login")== 0)
        {
                read(cfd, recv_name, sizeof(recv_name));
                read(cfd, recv_passwd, sizeof(recv_passwd));
                //printf("姓名：%s\t密码：%s登陆成功\n",name,passwd);
                if((strcmp(name, recv_name)==0)&&(strcmp(passwd, recv_passwd)==0))
                {
                        strcpy(buf,"登陆成功");
                        write(cfd, buf, sizeof(buf));
                }
                else
                {
                        strcpy(buf,"登陆失败");
                        write(cfd, buf, sizeof(buf));
                }
        }
        else
        {
                read(cfd, recv_name, sizeof(recv_name));
                read(cfd, recv_passwd, sizeof(recv_passwd));
                printf("姓名：%s\t密码：%s注册成功\n",recv_name,recv_passwd);
                        strcpy(name,recv_name);
                        strcpy(passwd,recv_passwd);

                        strcpy(buf,"注册成功");
                        write(cfd, buf, sizeof(buf));

        }

  }
}

